A word appearing as peresta or perta “half” in notes on numbers from the late 1960s, a combination of √PER “half” with the fractional suffix -sta.
Conceptual Development: Early Qenya Grammar of the 1920s had ᴱQ. lempe “one half” with adjective forms ᴱQ. lempea, ᴱQ. lenya, or lemya “half” (PE14/50-51, 84). All of these words were related to 1920s ᴱQ. lemin “five”.
peresta fraction "one half" (1/2), also perta (VT48:11)